[#BloombergLP-bslmt-ThreadUtil-deleteKey]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/ThreadUtil.adoc[ThreadUtil]::deleteKey
:relfileprefix: ../../../
:mrdocs:

Delete the specified process‐wide thread‐local key.

== Synopsis

Declared in `<bslmt_threadutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
deleteKey(xref:BloombergLP/bslmt/ThreadUtil/Key.adoc[Key]& key);
----

== Description

Delete the specified `key` from the calling process, and disassociate all threads from the thread key cleanup function supplied when `key` was created (see `createKey`). Return 0 on success, and a non‐zero value otherwise. The behavior is undefined unless `key` was obtained from a successful call to `createKey` and has not already been deleted. Note that deleting a key does not delete any data referred to by the pointer values associated with that key in any thread.

== Return Value

0 on success, and a non‐zero value otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| process‐wide thread‐local key to delete
|===


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